SWFUpload

This is a windows thing. When you select many files the entire group is listed in order from top down (the ordering depends on your view of the files, mine are ordered by type). Then the file that was under the pointer when the selection was finished is "selected" and is first.

It's not a SWFUpload thing. It's a windows thing and happens in all explorer windows.

I noticed it also. What I did to fix it is reorder the queue.
You can use the file object properties for correctly reorder the files by creation date (very appropriate for pictures from digital cameras) or by name alphabetically.

Create an array of all the selected files, reorder this array using the sort javascript method for example, and then upload the files in this ordered array one by one form position 0 to n.

If you want to re-sort the queue you then have to do your own manual queue management.

You can upload files in any order using startUpload(file_id). If you keep a sorted array of file objects you should be able to go through it in the order you wish.

I think the harder part it updating the UI and inserting newly queued files between the other UI elements.

Also note that you may confuse a user who already has a long list and then queues one more file that it is added to the list somewhere off-screen. They may think their file wasn't added at all.

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Something like this might work (I've not shown the queueing, sorting, cancel/error handling, just manual queue management).


var orderedFileQueue = [ /* already sorted file objects */];
function doUpload_Click() {
if (orderedFileQueue.length > 0) {
var file = orderedFileQueue.shift();
swfu.startUpload(file.id);
}
}

function uploadComplete(file) {
if (orderedFileQueue.length > 0) {
var nextFile = orderedFileQueue.shift();
this.startUpload(nextFile.id);
}
}